My computer won't authorize a plug + play usb device!?

i enjoy windows xp and it is supposed to be plug and play. but it isn't. even worst, none of the drivers on the cd support window xp, BECAUSE it's plug and play. how do i make the computer see it?

ps. it's an external hard drive.

Answers:
I face similar problem before. Plug the USB to the port. Try another port very soon. Still not detected? U will see an error message. Right click on My computer, click on Properties. Click on Hardware=>Device Manager. Can you see ur USB in Universal Serial Bus Controllers??
If yes, consequently right click on it and select "Uninstall". Now click on "Action" (besides File menu) and select "Scan for hardware changes".
If no, then there's a problem next to the USB. Most probably, it is related to the casing (cover) of the USB. Try to regulation it and then plug final the USB. I suppose ur USB is 2.0. Try to plug a flash drive in both the ports and see if its detected or not. Just to assessment the ports.

Gud Luck!!
try a different USB port or if you know how to change what respectively USB port does get into that nouns.

some USB's are pre-destined as items. my digital camera will work on one front USB but not the other on my tower and on all surrounded by the back. The one front one is destined as a thorny drive unit. My steering reins has to plug into impossible to tell apart as the camera. Plus some USB's are different, some are high speed and some are not.
Something sounds out of order. Are you getting any indication that your computer is recognizing some character of USB connection when you plug it contained by?

First, try connecting to a different USB port. Second, try a different USB cable if you have one. Thirdly, return the drive for another.
dance to www.download.com and search for the driver. OR you can step to control panel and click "add unmarked hardware". It will help you detect and try to install it for you.
near is some settings in BIOS roughly speaking USB /plug n play.
try to reset that. or u should update ur windows.
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